Consolidated Statements Of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
OPERATING ACTIVITIES
Net income	$ 7,556,000	$ 6,371,000
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sales	(7,099,000)	(59,000)
Impairment charges	9,850,000
Straight-line rents	(496,000)	230,000
Provision for doubtful accounts	762,000	631,000
Depreciation and amortization	20,371,000	20,633,000
Amortization of intangible lease liabilities, net	(1,275,000)	(1,410,000)
Expense relating to share-based compensation, net	1,833,000	1,340,000
Amortization (including accelerated write-off) of deferred financing costs	715,000	791,000
Changes in operating assets and liabilities, net of effects of acquisitions and dispositions:
Rents and other receivables	(1,466,000)	(829,000)
Prepaid expenses and other	270,000	878,000
Accounts payable and accrued liabilities	(696,000)	(994,000)
Net cash provided by operating activities	30,325,000	27,582,000
INVESTING ACTIVITIES
Acquisitions of real estate	(28,836,000)	(31,928,000)
Expenditures for real estate improvements	(9,037,000)	(4,480,000)
Net proceeds from sales of real estate	10,372,000	14,494,000
Construction escrows and other	177,000	1,883,000
Net cash (used in) investing activities	(27,324,000)	(20,031,000)
FINANCING ACTIVITIES
Repayments under revolving credit facility	(25,500,000)	(62,000,000)
Advances under revolving credit facility	40,000,000	76,000,000
Mortgage borrowing		50,000,000
Mortgage repayments	(1,663,000)	(53,864,000)
Payments of debt financing costs		(1,366,000)
Noncontrolling interests:
Distributions to limited partners	(36,000)	(35,000)
Common stock sales less issuance expenses, net	7,000	11,000
Preferred stock dividends	(7,204,000)	(7,204,000)
Distributions to common shareholders	(8,550,000)	(8,516,000)
Net cash (used in) financing activities	(2,946,000)	(6,974,000)
Net increase in cash and cash equivalents	55,000	577,000
Cash and cash equivalents at beginning of period	2,882,000	2,083,000
Cash and cash equivalents at end of period	$ 2,937,000	$ 2,660,000